Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 117 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.True or false: a long and a short line is the symbol for an ammeter. (a) False (b) True
2. 2.Which drawing is the symbol for a junction? (a) a circle with V inside (b) a dot where wires meet (c) a circle with A inside (d) triangle, bar and arrows
3. 3.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) motor (b) voltmeter (c) bulb (d) diode
4. 4.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) LED (b) wire (c) battery (d) resistor
5. 5.True or false: a circle with A inside is the symbol for a cell. (a) True (b) False
6. 6.✏️ Why do engineers draw circuits with symbols? (a) quick and clear for all (b) symbols are heavier (c) to make it colourful (d) to hide the circuit
7. 7.Which drawing is the symbol for a voltmeter? (a) a line lifted at a gap (b) a dot where wires meet (c) a circle with M inside (d) a circle with V inside
8. 8.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
9. 9.✏️ In a circuit diagram, wires are usually drawn as … (a) straight lines (b) wavy lines (c) little stars (d) dotted circles
10. 10.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) capacitor (b) resistor (c) battery (d) ammeter
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) both lines (b) the longer line (c) neither line (d) the shorter line
12. 12.Which drawing is the symbol for an ammeter? (a) a circle with A inside (b) a circle with an X in it (c) a small empty box (d) a circle with M inside
13. 13.True or false: a small empty box is the symbol for a resistor. (a) True (b) False
14. 14.Which drawing is the symbol for a wire? (a) a plain rectangle (b) two or more cell symbols (c) one tall, one short bar (d) a straight line
15. 15.True or false: a circle with A inside is the symbol for a motor. (a) False (b) True
16. 16.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) cell (b) ammeter (c) capacitor (d) bulb
17. 17.✏️ In a circuit diagram, which part is drawn as triangle against a bar? (a) ammeter (b) switch (c) diode (d) motor
18. 18.Which drawing is the symbol for a motor? (a) one tall, one short bar (b) a small empty box (c) a long and a short line (d) a circle with M inside
19. 19.✏️ In a circuit diagram, which part is drawn as a dot where wires meet? (a) motor (b) bulb (c) wire (d) junction
20. 20.✏️ In a circuit diagram, which part is drawn as a circle with a cross? (a) motor (b) bulb (c) cell (d) resistor
21. 21.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) capacitor (b) bulb (c) switch (d) motor
22. 22.True or false: a circle with A inside is the symbol for an ammeter. (a) False (b) True
23. 23.✏️ In a circuit diagram, which part is drawn as two or more cell symbols? (a) LED (b) battery (c) ammeter (d) wire
24. 24.✏️ In a circuit diagram, which part is drawn as triangle, bar and arrows? (a) ammeter (b) switch (c) resistor (d) LED
25. 25.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) switch (b) junction (c) motor (d) resistor
26. 26.True or false: a plain rectangle is the symbol for a diode. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) voltmeter (b) capacitor (c) diode (d) cell
28. 28.Which drawing is the symbol for a switch? (a) triangle, bar and arrows (b) a line lifted at a gap (c) a circle with A inside (d) a circle with M inside
29. 29.True or false: triangle, bar and arrows is the symbol for an LED. (a) True (b) False
30. 30.Which drawing is the symbol for a diode? (a) triangle against a bar (b) a long and a short line (c) two equal parallel lines (d) a line lifted at a gap
31. 31.True or false: two equal parallel lines is the symbol for a resistor. (a) False (b) True
32. 32.True or false: one tall, one short bar is the symbol for a cell. (a) False (b) True
33. 33.True or false: one tall, one short bar is the symbol for a motor. (a) True (b) False
34. 34.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) junction (b) wire (c) capacitor (d) motor
35. 35.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as a line lifted at a gap? (a) wire (b) motor (c) cell (d) switch
37. 37.Which drawing is the symbol for an LED? (a) a small empty box (b) triangle, bar and arrows (c) a straight line (d) a dot where wires meet
38. 38.Which drawing is the symbol for a capacitor? (a) a circle with A inside (b) triangle, bar and arrows (c) one tall, one short bar (d) two equal parallel lines
39. 39.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) diode (b) wire (c) switch (d) cell
40. 40.True or false: a dot where wires meet is the symbol for a cell. (a) True (b) False

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